Improvement in operating shuttle-boxes in looms



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TIMOTHY CLEARY, OF MILLBURY, MASSACHUSETTS.

Letters Patent No. 86,365, dated February 2, 1869.

IMPROVEMENT IN OPERATING SHUTLLE-1E'OXIEIS- IN LOOMS.

The Schedule referred to :in these Letters Patent and making part of thesame.

Know all lmen by these presents.:

That I, TIMOTHY CLEARY, of Millbury, in the county of Worcester, andCommonwealth of Massachusetts, have invented certain new and usefulImprovements in Looms, and I do hereby declare that the following is afull, clear, and exact description of the same, reference being had tothe accompanying drawings, forming a part of this specification, inwhich- Figure l represents an end View of my improvements in looms;

Figure 2 represents a rear View ofthe same;

Figure 3 represents a section on line A B, l, looking outward in thedirection indicated bythe arrow; and

Figure 4 represents a longitudinal section through the friction-wheel,shaft, gear, and bearing on line (l D, lig. l.

To enable those skilled in the art to which my invention belongs, tomake and use the same, I will proceed to describe it more in detail.

The nature of my invention consists, tirst, in the peculiar'construction, combination, and arrangement of the ratchet andgear-wheels, and working-dogs, for

operating the Itappet-wheels; second, in the peculiar construction andcombination of the shuttle-box, friction, and steadying-device used infancy looms.

In the drawings- The part marked A is the frame of the loom,

B, the shuttle-boxes, and

C, the crank-shaft, arranged, in relation to each other, in the usualmanner.

At the upper part of the frame A, at the back of the loom, an arm, I),projects to support the vchainleversV a and b, and the pattern-wheel E,which carries the pattern-chain.

The pattern-wheel E is turned by the pawl-hook c, which engages ratchetse, upon the hub of the patternwheel '141.

The paWl-hoolr c is pivoted to the circular plate d, which is caused tooscillate by the motion of the connecting-rod E, pivoted to thecrank-plate G, which latter derives its motion from the crank-shaft C,through the spur-gears g and g.

The pattern-chain consists of small rolls or bars and rolls of varioussizes. In the present instance, there are but three different sizesshown, the different proportions of which are fully indicated in thedrawings, at f, fig. 3.

Near the lower part or" the frame A, at the back side, and connectedthereto by bearings 71 is a shaft, H, extending parallel to the lengthof the loom, .and to its ends are fastened the tappet-wheels K, 4made inthe form of heart-shaped cams, havingin their faces grooves lc, in whichwork the pins or rolls fi, in the end of the shuttle-box levers I. p

Upon the shaft H, between the tappet-wheels and the frame of the loom,are two gears, J and L, both of the same size, and rigidly keyed to theshaft.

A bore the shaft H, there projects from the frame A a stud, M, uponwhich are hung and turn two gears, N and O, and two ratchet-wheels, Pand It.

The gear N meshes directly into the gear J, upon the tappet-wheel shaftH, and is four times the size of that gear in circumference;consequently'the gearJ and shaft H would make four revolutions to onerevolution ofthe gear N.

The ratchet-wheel P is composed of sixteen points or ratchets, and issecurely fastened to the inner side of the gear N, so that they bothmore together.

The gear O is twice the size of the gear L, or oneljalf the size of gearN, and is geared with gear L by an intermediate gear, S, which issupported by a stud projecting from the frame A.

The ratchet-wheel R is composed of eight points or ratchets, and isscrewed firmly to the gear O, as fully indicated in the drawings.

From the shaft H, extending forward and upward in a curve, is an arm, T,connected thereto, between the gears J and L, by a hub, m., throughwhich the shaft H passes, allowing it to swing freely thereon.

To the upper en d of the arm T are fastened workingdogs or long pawls, land 2, by means of the pivot at, whereby they are allowed to rise andfall with the motion of the levers c and b, to which they are attachedby meansof rods, chains, or cords Z l.`

At the lower side of the arm T is a projection, t, which engages the camU, and by which the arm T and working-dogs l'and 2 are operated.

The cam U is fastened to the end of a shaft, V, extending parallel tothe length of the loom, and receivingits motion from theordinarydriving-shaft, by means of suitable gearing.

The shuttle-box levers I extend, from the tappetwheels K forward tobeneath the shuttle-boxes B, and are connected to them by rods p, thelatter being conne'cted to levers I, at their lower ends, by means ofpivots q.

Studs fu, projecting from the ends of the frame' A, form the fulcraofthe levers I, near the forward ends of the levers I, and securediirmly thereto are internal segment-gears w, -which mesh into gears X,connected to the outer end of the journals of friction-wheels Y,

and by means of which the levers I are prevented from i jarring orbounding, thereby moving the boxes steadily and with great precision.

It will be seen that, by applying the friction nearly under theshuttle-boxes, it required less power to hold the box-stems or rods pfrom jarring or rebounding, than it would it' the `friction were appliedto the tappetwheels, or even to the rear ends of levers I, thusrequiring less power to operate the loom, while, at the same time, thetappet-wheels are subjected to less strain.

The shafts or journals of the friction-wheels Y and gears X aresupported in pipe-bearings upon the curved arms fu, fastened to theframe A of the loom, as indicated in the drawings by dotted lines and insection.

The diction-wheels are made with :i smooth, fiat..-

groove around their faces, to receive bands, y, of metal, leather,rubber, or any other' suitable substance, the ends thereof being broughtforward and held by h ooks 3, the shanlis of which pass through studs z,and are made adjustable by the nuts and screws 4, whereby the amount offriction can be regulated.

The operation is as follows:

, The parts being in position, shown in dark lines, iig. 3, the loom isYstarted, the cam U carries up the arm T to the position shown in redlines, the dog l engaging with the ratchet-wheel P, and carrying itforward with the gear N, a distance corresponding to the length of tworatchet-points, o r one-eighth of a revo lution, which moves the gear Jand tappet-wheel onehalf a revolution, bringing down the boxes twospaces, to the position shown in red hues.

The change of the .pattern-wheel E brings up the second-sized roll ofthechain, which slightlyraises the lever a, bringing np'the dog 1, so thatit passes-over one point of the ratchet-Wheel before engaging with it,and moves-the ratchet and gear N a distance corresponding to the lengthof only one ratchet, orone-sixteenth of a revolution, thereby moving thetappet-wheel only one-quarter revolution, which moves the box-rod onespace up, to the position shown in blue lines.

Now, if it be desired to move the tappet-wheel back `to its formerposition, (the one shown in red lines,) the rolls in the pattern-wheelare so arranged as to raise lever a and dog l, and lower level' b anddog 2, which engages the ratchet-wheel R, and movesit, with the gear O,forward one-eighth revolution, or a distance corresponding to thelength. ofone of its points.

The gear O being only twice the size of the gear L, on the tappet-wheelshaft H, the tappet-wheel is moved back one-quarter revolution, to theposition showny in red lines, the motion of the shaft being reversed bythe use ofthe intermediate gear S.

It will be seen that 'the number of points on the ratchet-'wheels isproportioned to the number of stationsor points where the rolls or pinsin the ends of lever I will rest, tobiing all the shuttle-boxes inworking position.

Thus, iu this instance, there ,are four stations on the tappet-wheel.Two of them being opposite and the same distance from the centre, willbring the same box into working position.

The gear N being four-times the size ofthe gear J, on shaftv H, whichmoves the tappeti-wheel, the num- 4 ber of points on the ratchet-wheel Pis sixteen. l

The gear O being twice the sizeof gear L, the number of points on theratchet-wheel R is eight.

Therefore, to apply my invention to aloom with anynumber of boxesdesired, construct the tappet-wheel so that the working of lever I willgive the required number of stations, and makethe ratchet-wheels with aproportional number of points. Then put as manysized rolls into thepattern-chain as there are boxes, so that the dogs will engage one, two,three, four, five, or

six points on the ratchet-wheel, and the boxes can be moved one, two,three, four, five, or six spaces up/or down, as the case may be; or, inotherlwords, when the dog engages onev point of the ratchet-wheel, themovement of the tappet-wheel carries the lever I from one station to thenext, raising the boxes only one space. When it engages two points, thelever Iis moved to the second station, raising the boxes two spaces, and

when engaging three, to the third station beyond, rais- Y Y' ,ring andbinding of the boxes, so incident to the use of the old tappet-wheel, isobviated, thus enabling me to vrun my looms at a higher rate of speedthan can at present be done with the mechanism in common use.

For some classes of work'or weaving, the inner system, consisting oftheratchet-wheel R and gears O, S, and L, may be dispensed with, using.only the outer lsystem o r ratchet-wheel P and gears N and J, inconnection with the tappet-Wheel K; while, ii' preferred, the' twosystems may be made by constructing the inner and outer gears-andratchet-wheels both of the same size, and joining them to thetappet-Wheel shaft, with one and two intermediate gears, respectively.

ln lieu of the gears X and w, other devices may be substituted forcombining the friction-device with levers I.

Having described my improvements in looms,

That I claim therein as new and of my invention, and desire to secure byLetters Patentl. The combination of the gears N andJ, the tappetwheel K,and ratchet-wheel P, of the pawl or dog l, connected with and operatedby the cam u, or its equivalent, and the pattern or chain-wheel, in themanner and-for the purposes shown and set forth.

f2. The combination, with the gears N, J, O, und L, the tappet-wheel,and the ratchet-Wheels PR, of the vibratory dogs 1, 2, connected withand operated `by the cam u, or its equivalent, and the pattern orchain-wheel, in the manner and for the purposes shown and set forth.

3. The combination, with lever I, of the frictiondevice y, gears w x,and the adjusting-hook or device 3,

all constructed and arranged substantially as and for the purposesherein shown and described.

TIMOTHY GLEARY. Witnesses:

Trios. H. DODGE, D. L. MILLER.

